Github user ankurdave commented on a diff in the pull request: https://github.com/apache/spark/pull/9470#discussion_r47396144 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala --- @@ -620,6 +608,32 @@ class DataFrame private[sql]( } /** + * Returns a new [[DataFrame]] with each partition sorted by the given expressions. + * + * This is the same operation as "SORT BY" in SQL (Hive QL). + * + * @group dfops + * @since 1.6.0 + */ + @scala.annotation.varargs + def sortWithinPartitions(sortCol: String, sortCols: String*): DataFrame = { + sortWithinPartitions(sortCol, sortCols : _*) --- End diff -- @rxin This causes an infinite loop, which isn't caught by the unit tests since DataFrameSuite only tests the `Column*` overload.
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